Lighting fixture



FIG. 1 is a perspective view of a lighting fixture showing my new design;

FIG. 2 is a front side view thereof, the back side view being identical thereto;

FIG. 3 is a right side view thereof, the left side view being identical thereto;

FIG. 4 is a top view thereof; and,

FIG. 5 is a bottom view thereof. 

CLAIM The ornamental design for a lighting fixture, as shown and described. 